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| Fehling's solution (igisheva); cupri-tartaric solution (igisheva) | |||
| Fehling solution (dimock); Fehling's reagent (dimock) | |||
| фелингов реактив: 8 phrases in 5 subjects |
| Agriculture | 2 |
| Agrochemistry | 1 |
| Analytical chemistry | 3 |
| Fish farming pisciculture | 1 |
| Makarov | 1 |